What you will learn
- Correlated indicators
- Parameter sensitivity
- Timeframe alignment
- Rules for conflicting measurements
Correlated indicators
Indicators built from similar inputs can be highly dependent. Counting each as a separate vote may create a false impression of confirmation. Identify the underlying information—price trend, volatility or activity—before combining measurements.
Parameter sensitivity
Parameter sensitivity asks whether a conclusion survives reasonable neighboring settings. A single best historical parameter can reflect selection noise. Preserve all tested settings and compare stability rather than reporting only the winner.
Timeframe alignment
Timeframe alignment must respect information availability. A higher-timeframe indicator based on an unfinished bar can change before close. A historical test using its final value earlier introduces lookahead unless the evolving value was actually recorded.
Rules for conflicting measurements
Specify a rule for disagreement: no trade, priority to a particular horizon or another tested response. Choosing whichever indicator supports the desired trade after seeing prices makes the strategy impossible to evaluate honestly.
Worked example
A five-minute entry is justified with the final value of an hourly candle that closes forty minutes later. The historical record contains that final value, but the decision time did not.
Try it yourself
Rewrite the rule using only the last completed hourly value or explicitly recorded developing values. Explain how this affects reproducibility.
Show the worked solution
Both alternatives can be specified, but they use different information. Store the observation timestamp and availability rule. A final hourly value cannot be silently substituted for a developing value that may later change.
Apply this to your course project
Compare several indicators derived from the same prices and document redundant information.
Keep the calculation inputs, assumptions and decisions with your work. Practical exercises are self-reviewed; the scored knowledge checks assess the questions shown, not an independent certification of practical competence.